<html>
	<head>
		<meta http-equiv="content-type" content="text/html; charset=utf-8">
		<title>Extends</title>
		<script type="text/javascript" src="jquery-1.7.2.min.js"></script>
		<script type="text/javascript" src="jquery.extends.js"></script>
	</head>
	<body>

		<div id="ren">
			123
		</div>
		
		<script type="text/javascript" charset="utf-8">
			//$.tu();
			//$('#ren').tu();
		</script>
	</body>
</html>
